def neighborAdress(neighborName):
router_list = readrouters(sys.argv[1])
address = 0
for j in router_list:
if neighborName == j:
address = router_list[j].baseport
return address
def change(test, end1, end2, newcost):
routerInfo = readrouters.readrouters(test)
end1info = (routerInfo[end1].host, routerInfo[end1].baseport)
end2info = (routerInfo[end2].host, routerInfo[end2].baseport)
msg1 = "L %s %d" % (end2, newcost)
msg2 = "L %s %d" % (end1, newcost)
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.sendto(msg1.encode(), end1info)
s.sendto(msg2.encode(), end2info)
def change(test, end1, end2, newcost):
routerInfo = readrouters.readrouters(test)
end1info = (routerInfo[end1].host, routerInfo[end1].baseport)
end2info = (routerInfo[end2].host, routerInfo[end2].baseport)
msg1 = 'L %s %d' % (end2, newcost)
msg2 = 'L %s %d' % (end1, newcost)
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.sendto(msg1, end1info)
s.sendto(msg2, end2info)
if neighbor in MasterDVTable[fd].DVTable :
if MasterDVTable[fd].DVTable[neighbor] + MasterDVTable[fd].cost < min_distance: #distance to router(neighbor variable) + cost to our neigh
min_distance = MasterDVTable[fd].DVTable[neighbor] + MasterDVTable[fd].cost
nexthop = MasterDVTable[fd].name
if min_distance < 99:
return nexthop
else:
return None
if __name__ == '__main__':
print "Router %s initialization started...\n" % myName
router_list = readrouters(testDir) #global info
router_link_list = readlinks(testDir, myName)#info about my neighbors
for name in router_list:
print ("RouterName: %s, port# %d" % (name ,router_list[name].baseport))
print("")
for name in router_link_list:
print "Neighbor: %s, Link Cost: %d" % (name, router_link_list[name].cost)
print("")
print ('initialization...')
# Create a TCP/IP socket
server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
#server.setblocking(0)
if __name__ == '__main__':
if len(sys.argv) < 3:
print 'Not enough arguments'
close(0)
elif len(sys.argv) == 4:
P = sys.argv[1]
testDir = sys.argv[2]
myName = sys.argv[3]
else:
P = 0
testDir = sys.argv[1]
myName = sys.argv[2]
print 'Router initialization started...\n'
router_list = readrouters(testDir)
router_link_list = readlinks(testDir,myName)
for i in router_list:
print "RouterName: %s, port# %d" % (i,router_list[i].baseport)
for j in router_link_list:
neighbor = j
print "Neighbor: %s, Link Cost: %d" % (j, router_link_list[j].remotelink)
print 'Router init End...'
print 'Creating Router Connection now'
localhost = router_list[myName].host
portNumber = router_list[myName].baseport
my_address = (localhost, portNumber)
rSock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
rSock.bind(my_address)
we extract, testdir, routername
NOTE: using readroutes, readlinks from skeleton
'''
parser = cliparser(description='router')
parser.add_argument('-p', action='store_true')
parser.add_argument('testdir')
parser.add_argument('routername')
args = parser.parse_args()
testdir = args.testdir
poisoned = args.p
routername = args.routername
links = readlinks(testdir, routername)
routerlist = readrouters(testdir)
neighbor = []
for link,linkinfo in links.items():
neighbor.append([link,linkinfo.cost])
routerx = Router(routername, neighbor, poisoned)
neighborset = []
broadcaster = setupserver(routerlist[routername].host,routerlist[routername].baseport)
socketmap = [ routername ]
for host,info in routerlist.items():
if host in links:
neighborset.append(setupsock(routerlist[routername].host,routerlist[host].host,\
#!/usr/bin/python
import readrouters
import socket
def printTables(routerInfo):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
for router in routerInfo.keys():
endinfo = (routerInfo[router].host, routerInfo[router].baseport)
msg = 'P'
s.sendto(msg.encode(), endinfo)
def printTable(router, routerInfo):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
endinfo = (routerInfo[router].host, routerInfo[router].baseport)
msg = 'P'
s.sendto(msg.encode(), endinfo)
if __name__=='__main__':
import sys
routerInfo = readrouters.readrouters(sys.argv[1])
if len(sys.argv) == 3:
printTable(sys.argv[2], routerInfo)
elif len(sys.argv) == 2:
printTables(routerInfo)
#!/usr/bin/python
import readrouters
import socket
def printTables(routerInfo):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
for router in routerInfo.keys():
endinfo = (routerInfo[router].host, routerInfo[router].baseport)
msg = 'P'
s.sendto(msg, endinfo)
def printTable(router, routerInfo):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
endinfo = (routerInfo[router].host, routerInfo[router].baseport)
msg = 'P'
s.sendto(msg, endinfo)
if __name__ == '__main__':
import sys
routerInfo = readrouters.readrouters(sys.argv[1])
if len(sys.argv) == 3:
printTable(sys.argv[2], routerInfo)
elif len(sys.argv) == 2:
printTables(routerInfo)
# Filename: router.py
import sys #, readrouters
# How to use get sys arguments
#for i in sys.argv:
# print i
# or use sys.argv[1],2,3,4 for arguments
#from sys import argv #gets ARGV Variable
from readrouters import readrouters, readlinks, RouterInfo, LinkInfo
#We can now use these imported functions and class structures
if __name__ == '__main__':
print 'Router initialization started...\n'
#Dictionary data struct is like hash table, d = {key1 : value1, key2 : value2 }
router_list = readrouters(sys.argv[1])
router_link_list = readlinks(sys.argv[1],sys.argv[2])
for i in router_list:
print "RouterName: %s, port# %d" % (i,router_list[i].baseport)
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.setblocking(0)
localhost = router_list[sys.argv[2]].host
portNumber = router_list[sys.argv[2]].baseport
server_address = (localhost, portNumber)
server.bind(server_address)
server.listen(5)
inputs = [ server ]
outputs = [ ]
message_queues = {}
for j in router_link_list:
message_queues.put(j)
